EP4455617A4 - FORM MEASURING SYSTEM AND FORM MEASURING METHOD - Google Patents

FORM MEASURING SYSTEM AND FORM MEASURING METHOD

Info

Publication number
EP4455617A4
EP4455617A4 EP22910773.5A EP22910773A EP4455617A4 EP 4455617 A4 EP4455617 A4 EP 4455617A4 EP 22910773 A EP22910773 A EP 22910773A EP 4455617 A4 EP4455617 A4 EP 4455617A4
Authority
EP
European Patent Office
Prior art keywords
shape measurement
measurement system
measurement method
shape
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22910773.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4455617A1 (en
Inventor
Nobutomo Hanzawa
Kazuhide Nakajima
Takashi Matsui
Hideaki Murayama
Ryota Wada
Makito Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Tokyo NUC
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
University of Tokyo NUC
NTT Inc USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, University of Tokyo NUC, NTT Inc USA filed Critical Nippon Telegraph and Telephone Corp
Publication of EP4455617A1 publication Critical patent/EP4455617A1/en
Publication of EP4455617A4 publication Critical patent/EP4455617A4/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/3538—Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
EP22910773.5A 2021-12-24 2022-11-29 FORM MEASURING SYSTEM AND FORM MEASURING METHOD Pending EP4455617A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021210127 2021-12-24
PCT/JP2022/043879 WO2023120055A1 (ja) 2021-12-24 2022-11-29 形状測定システム及び形状測定方法

Publications (2)

Publication Number Publication Date
EP4455617A1 EP4455617A1 (en) 2024-10-30
EP4455617A4 true EP4455617A4 (en) 2025-12-17

Family

ID=86902308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22910773.5A Pending EP4455617A4 (en) 2021-12-24 2022-11-29 FORM MEASURING SYSTEM AND FORM MEASURING METHOD

Country Status (4)

Country Link
US (1) US20250060213A1 (https=)
EP (1) EP4455617A4 (https=)
JP (1) JP7637395B2 (https=)
WO (1) WO2023120055A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025047077A1 (ja) * 2023-08-28 2025-03-06 日本電信電話株式会社 測定システム、測定方法、及び、解析装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324358A (ja) * 2000-05-12 2001-11-22 Fujikura Ltd 光ファイバセンサ
US20070156019A1 (en) * 2005-12-30 2007-07-05 Larkin David Q Robotic surgery system including position sensors using fiber bragg gratings
US7324714B1 (en) * 2007-04-11 2008-01-29 The United States Of America As Represented By The Secretary Of The Navy Multicore fiber curvature sensor
US20140202015A1 (en) * 2013-01-24 2014-07-24 Faro Technologies, Inc. Non-articulated portable cmm
JP2016102691A (ja) * 2014-11-27 2016-06-02 日本電信電話株式会社 光ファイバの曲げ形状測定装置及びその曲げ形状測定方法
US20210187752A1 (en) * 2016-07-08 2021-06-24 Intuitive Surgical Operations, Inc. Calculation of redundant bend in multi-core fiber for safety
WO2021176667A1 (ja) * 2020-03-05 2021-09-10 日本電信電話株式会社 テープ心線を用いた測定装置及び測定方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4134511B2 (ja) * 2000-12-14 2008-08-20 日立電線株式会社 希土類元素添加光ファイバ及びそれを用いた光デバイス
US10302463B2 (en) * 2015-11-19 2019-05-28 Corning Incorporated Distributed fiber sensors and systems employing multicore optical fibers
US10581216B2 (en) * 2016-05-25 2020-03-03 Nec Corporation 3D waveguide for efficient coupling of multimode pump and signals to a multicore fiber amplifier
US12203847B2 (en) * 2020-06-05 2025-01-21 Nippon Telegraph And Telephone Corporation Shape measurement system and shape measurement method
JP7627912B2 (ja) * 2020-11-05 2025-02-07 日本電信電話株式会社 線状構造物の挙動を算出する装置及び方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324358A (ja) * 2000-05-12 2001-11-22 Fujikura Ltd 光ファイバセンサ
US20070156019A1 (en) * 2005-12-30 2007-07-05 Larkin David Q Robotic surgery system including position sensors using fiber bragg gratings
US7324714B1 (en) * 2007-04-11 2008-01-29 The United States Of America As Represented By The Secretary Of The Navy Multicore fiber curvature sensor
US20140202015A1 (en) * 2013-01-24 2014-07-24 Faro Technologies, Inc. Non-articulated portable cmm
JP2016102691A (ja) * 2014-11-27 2016-06-02 日本電信電話株式会社 光ファイバの曲げ形状測定装置及びその曲げ形状測定方法
US20210187752A1 (en) * 2016-07-08 2021-06-24 Intuitive Surgical Operations, Inc. Calculation of redundant bend in multi-core fiber for safety
WO2021176667A1 (ja) * 2020-03-05 2021-09-10 日本電信電話株式会社 テープ心線を用いた測定装置及び測定方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023120055A1 *

Also Published As

Publication number Publication date
JP7637395B2 (ja) 2025-02-28
WO2023120055A1 (ja) 2023-06-29
US20250060213A1 (en) 2025-02-20
EP4455617A1 (en) 2024-10-30
JPWO2023120055A1 (https=) 2023-06-29

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DAX Request for extension of the european patent (deleted)
RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NTT, INC.

Owner name: THE UNIVERSITY OF TOKYO

A4 Supplementary search report drawn up and despatched

Effective date: 20251118

RIC1 Information provided on ipc code assigned before grant

Ipc: G01D 5/353 20060101AFI20251112BHEP

Ipc: G01B 11/16 20060101ALI20251112BHEP

Ipc: G02B 6/02 20060101ALN20251112BHEP

Ipc: G02B 6/42 20060101ALN20251112BHEP